Swap relallfrozen when swapping relation files #38365

Job	Run time
check_paths	7s
Update test PG16 singlestep	17m 49s
Update test PG18 singlestep	4m 36s
Update test PG17 direct	7m 1s
Update test PG16 direct	10m 22s
Update test PG17 singlestep	7m 44s
Update test PG18 direct	15m 31s
Update and Downgrade summary	3s
	1h 3m 13s

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